Double-box cotton press



J. 'M. PEERSON.

DOUBLE BOX.COTTON PRESS.

APPLICATION FJLED FEB. I0. I92]. 1,428,610,. a nt dfiept. 12, 1922 2 SHEETS-SHEET l.

a l PW"! l l I Fig. 1 a8 I INVENTOR d. M. Peerson.

ATTORNEY J. M. PEERSON.

DOUBLE BOX COTTON PRESS.

APPLICATION FILED FEB. 10.1921

1942mm PatentedSept. 12,1922.

2 SHEETS-SHEET 2.

iNVENTOR d.M.Pee|-son.

ATTORNEY Patented Sept. 12, 1922.

UNITED STATES i:

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JAMES M. rnnason, or nulv'rs'vr upnhnlinhivie; I

DOUBLE-BOX COTTON PRESS,

Application filed February 10,

To all whom it may concern: 1

Be it known that 1, JAMES M. 'Pnrmsom a citizen of the United States of America,

residing at Huntsville, in the county of;

Madison and State of Alabama, have invented certain new i and useful Improve independent and it is a prime object of my invention to utilize the power as applied to the operation of the tramper to generate the hydraulic pressure for the operation of the ram. l

A further object of my utilize the column about which the box operated with the tramper to generate therein hydraulic pressure for the hydraulic ram.

This piston forms an ideal guide for the tramper platen.

A further object of my invention is to" simplify and perfect a drive for the tramper which will function most efliciently in con-.

nectionwith the operation of the hydraulic pump in the press column.

A further ob'ect is to provide a drive for the tramper of, such character that it will permit the tramper platen to drop by gravity after completing its up stroke, the drive being adapted to resume its thrust on the tramper as soon as the latter comes to rest on the cotton or other material. Thepurpose of this arrangement is to expedite the operation of the tramper by permitting it to drop by gravity onto the material in the press and I desire to claim the novel features of the tramper as applied to feeding under pressure any material into a press, mill, or receiver of any type.

My invention further comprises the novel details of construction and arrangements of parts, which in their preferred embodiment only areillustrated in the accompanying drawin -The prises aiipairi-of spacedi overhead beams 21 1921.-- Serial No. 443,940;

. gs Which form apart of this specification, and in which 1 HF 1g. 1 1s a slde elevation of'a double box cotton press embodying my present invention.- r I Fig. 2 isa top plan viewo f Fig. 1.

Fig. 3 isan enlar'gedldeta'il' sectional view takenontheline 3-3 of Fig.1 1.

Figsa is adetail' view of a'modified type of cam operating ratchet wheel.

bimllar reference numerals refer to similarparts throughout wthe' drawings;

In the embodiment of my invention illus-- trated, l represents the bottom sills of a double box cotton press andon the center of these ls mounted by m'eansof a bolt 2 a cylindrical -base' 3 into which the press column 4: is

screwed The bolt2 passes up between the sills-1, andzscrews into the bottom of the "cylindrical base 3. It carries' a nut and washer 5 onits lower end by means of which the-said'base 3 is rigidly bolted in position -on thesills'L, The column'i t at its upper invention is to end carries a collar 6-which engages'the underface of the toplbeams 7'. The column revolves as a cylinder for a piston which is" a projectslbetween the top beams 7 and its upper end is threaded to receive a gland 8 which screws down thereon against a heavy thewreception of the double box press 11 which is of any standard type, having suitable cross battens 12 on its opposite sides; the upper of which carry a centering plate 13 which turns with a snug .fit about thecolumn 4t, and thelower of which battenscarry a bearing sleeve 14 which rests and turns on the top of the 'column' support '3 about the column l as an axis. Below the left hand press box I show the usual type of hydraulic ram 15, the plunger 16 of which worksin a 'cylinder 17rigidly attached atits upper end to th'ebase sills l. The ram'is adapted to compress the bale between it and a presser head 18 attached towthe underface of the platen operating n1echanismcomwhich pass on either side of the platen bar 20 and are pivotally connected thereto by a cross bolt 22 working in a transverse slot 26. These beams at their other end are pivotally connectedby a pin 23 to the upper end of a rocking standard 24 which at its base is interposed between the beams. and pivotally connected thereto by a bolt 25. These beams 21 carry near the centers of their upper edges a pair of bearings 27 in which is mounted a crosspi-n 2.8 that carries a roller or sleeve 29 disposed crosswise of and above the beams. This: roller is adapted to be engaged by an overhead: earn having a substantially spiral curved working face 30. and a substantially radial idle face 31 connecting the outer and inner ends of the curved working face- Thev cam is keyed on a shaft 32; turning" in bearings which are underhung from two overhead beams 34 supported by uprights: 3'5 and forming a rigid superstructure above the press. I also mount fast on the shaft 32 a ratchet wheel 36, the wheel and cam being both disposed between the beams 34. The ratchet wheel 36 is adapted to be operated by a-pair of paw ls 37 and 38 pi'votally conected to opposite ends of a vertical rocker bar 39- journal'edin bearings 40 on the beams: 34 and having its lower end connected by' as link 41 with a crank 42 on the main drive shaft: 43.: which turns in bearings 44. on top ofone 0.15 the beams 34, this shaft being driven byfit pulley 45 from any suitable sourcev of. power. Thetramper operating beams 21 carry a cross pin 46 carrying a pawl 47' which is held from falling over to the left by a stop pin 48 and which is adapted when raised with the upstroke of the beams 21 to engage the ratchet wheel, as shown. by the dotted lines in Fig. 1. The cam a-tthe outer end of its radial face 31 is provided on each side with a pair" of rollers 49 which are adapted to engage the inclined under faces of the trip bars: or plates 50 which are rigidly mounted on the inside faces of the beams. 21 in position to straddle the cam and to be engaged by the rollers 49 'moving clockwise so that the latter willlift the beams 21 to their raised or dotted position (Fig; 1.). hen the rollers t9 release the plates 50 the platen and beams, 21 are tree to drop by gravity until arrested by the cotton, and? when this: occurs, the pawl 47 by its: engagement with. the ratchet wheel 36 will rotate the latter and with it the cam 30 through anarc proportionate to the pl'at'en s free full. This rapid drop of the platenwill not be opposed by the engagement of the pawl 47: with the ratchet wheel 36- as the latteris tree to be turned forward idly by the pawl 47 during the gravity dropv of the platen, and, as soon as the material in the press box stops the gravitating movement of the platen, thevpawls. and 381 will at once resume theirdrive on the ratchet Whe'elgthus turning the cam and forcing the platen downwardly until its full downward or power stroke has been completed.

The hydraulic pump mechanism, which is opratcd by and forms the guide. for the tramper, comprises a pump piston 51 on the plunger rod 52 that is i'eciprocable in the column 4 as a pump cylinder, its upper end passing through the gland 8 and being re ceived between and pivotally connected to the beams 21 by a pin 53. The reciprocation of the platen will thus involve a reciprocation of the pump plunger andthis in turn will generate the necessary hydraulic power for operating the ram in the following manner. Upon the up or idle stroke of the plunger fluid will be drawn into the base of thecolum-n through a pipe 54 leading from a storagetank 55 to which is also connected the pipe 56 forming the exhaustfor the rain cylinder; A check valve 57 in the intake. pipe 54 will open towards the pump to admit fluid but which will close against pressure from the pump. A pipe 58 having a check valve 59, which will open responsive to pressure in the pump, leads to a four-way valve 66 having one branch 61 connected to:-'

a compression tank 62, there being a globe valve 63' in the branch 61. Another branch 64 from the four-way valve connects to the exhaust pipe 56, and the third branch 65 serves: as the fluid pressure supply pipe for the rain. I providevalves 66 and 67 in the pipes 54 and 56, respectively, and below these valves I provide a regulating valve 68 in the pipe 54 having 'a spring-pressed stem 69 forming a plunger which moves outward l'y responsive to a predetermined pressure in a casing 70 interposed in the exhaust line 56' below the valve 6'7. This'regulating valve 58 and the casing 70 are rigidly mounted on a bracket or support '51 which will hold them in operating relation.

If it is desired to operate the tramper only, the four-way 'valve 60 is set to open pipe 65 through the branch 64 to the exhaust pipe 56 and thus the fluid will circulate idly between the pump and storage tank. If it is desired to cut oh the'circulation entirely,

it is only necessary to close the valve 66 which cuts off any return circulation between the tank 55 and the pump it being noted" that the piston does not have a tight enough fit in the column to have its operation substantially interfered with by a vacuum created below it on its up stroke. When it is desired to bring the pump into operation the four-way valve 60 is turned to connect the pipes 58 and 65 and I open valve 66 and thereafter, the tramping of'a bale will proceed cotemporaneouslywith the operation of thehyd raulic pump which will deliver the 1 requisite fluid pressure'to the ram to press the previously tram-pod bale. Theamount ct pumping duty can be controlled by the completing the down stroke of the platen and pump. WVhen the platen drops by gravaction of the, automatic valve 68 which can be set to control the amount of fluidwhich the up stroke of the piston will draw into the column.

It will be noted that after the roller on the beams 21 has reached the base of the radial cam wall 31 it will be engaged by the inner end of the curved" working face which is plotted on an abrupt curve to effects rapid initial movement of the platen and pump. 'As soon as the outer gradually curved face of the cam engages the roller the movement thereafter imparted to the platen and pump is slow and of great power. By this arrangement I obtain from the cam a relatively quick return of the platen to its raised position, a rapid down drive through the major portion ofthe down stroke of the platen and pump when the piston does not drop by gravity, and a slow powerful drive ity the initial portion of the cams stroke becomes idle and practically instantaneous. The peculiar construction of the cams working face. nearest its center which first engages the platen operating beams 21 is so designed as to afford a very high ratio of leverage because of the short radius from the cam center as compared with the radius of the ratchet wheel, and this high leverage is accompanied by a rapid thrust imparted for the major portion of the stroke to the pump plunger. It is to be noted that the completion of the pumping stroke is derived from the very gradually inclined face of the cam which produces a slow and powerful movement of the plunger. This slow powerful movement is used to do thehigh pressure pumping, when only a small amount of fluid should be admitted for the pump on its up stroke so that it is only the final part of the down stroke of the plunger. which 5' functions to pump under heavy load conditions.

Where it is desired to stop the operation of the apparatus. it is only necessary to move upwardly into its full line position (Fig. 1), a trip bar 72 which, as the beams 21 are raised, will engage'the pawls 86 and 37 anddisengage them from the ratchet wheel just before the rollers 49 release the trip plates 50 on the beams 21. This will hold all parts of the press in raised position. The trip bar when in its raised position engages a permanent stop pin 73 and can be held rigidly in this position by a detachable stop pin 7l which must be removed to drop the trip bar to dotted line position. If it be desired to increase the power derived from the ratchet wheel while the platen is approaching the limit of its power stroke, this can be accomplished by an eccentric mounting of the ratchet wheel 75. as seen in Fig. 4, the teeth most remote from the lWheBl center being engaged. by the operating pawls asthe platen approaches the end of its power stroke.

The upper end of the platen bar 20 is guided between rolls 76 mounted in bear lugs 77 on top of the overhead heamsSe't. Mytramper mechanism is capable of adaptation to various types of presses and to pressure feeding of any suitable material into a hopper or container, or into a press of any character.

This invention is not intended to be restricted in scope to the specificembodiments shown, but contemplates such modifications as come within the spirit and scope ofthe claims. I a

Having thus described inventiomwhat I claim asnew and desire to secure by Letters Patent, is

1. .The combination with a receptacle, of a platen reciprocable thereinto, a rocking beam pivotally connected at one end to the platen and at'the other endto a support, means to guide the platen, and cam driving means to raise and lower said rocking'beam to reciprocate the platen. i

2. In combination, a receptacle, a platen reciprocable thereinto, guides for the platen, an operating mechanism for the platen comprising a reciprocable member connected to the platen, and power driven means adapted to lift, release and follow the memher down to complete the power stroke of the platen.

8. In combination, a receptacle for material to be compressed, a platen reciprocable thereinto, an operating mechanism for the platen comprising means to lift and release the platen for a gravity drop, and

means to engage and positivel drive the rial to be compressed, a platen reciprocable thereinto, an operating mechanism for the platen comprising means to lift and release the platen for a gravity drop, and means to drive the platen positively for the remain der of its stroke downwardly, said means comprising a driving cam.

5. In combination, a receptacle for material to be'compressed, a platen reciprocable thereinto, an operating mechanism for the platen comprising means to lift and release 'the platen for a gravity drop, and means 'to follow up and positively drive the platen the remainder of its stroke downwardly, said means comprising a driving cam, and a pawl and ratchet drive for the cum.

6. In combination, a receptacle for material to be compressed, a platen reciprocable thereinto, an operating mechanism for the platencomprising means to lift'and release the platen for a gravity drop, and means to engage and positively drive the platen the on to impart the final downward movement to the platen.

7. The combination with a press box, of a reciprocable platen therefor having guides and a reciprocating mechanism comprising a trip mechanism to lift and release the platen, and a pawl and ratchet driven cam for driving the platen the remainder of its down stroke.

8. The combination with a press box, of a platen reciprocable thereinto, guides for the platen, a pivoted driving arm for the platen, a power driven cam adapted to engage and depress said arm, a trip on the arm, and a roller movable with the cam to engage the trip and lift the arm and platen to elevated position before releasing them. 9. The combination with a press box, of a. platen reciproca le thereinto, guides for the platen, a pivoted driving arm for the platen, a power driven cam adapted to engage and depress said arm, a trip on the arm, a roller movable with the cam to engage the trip and lift the arm and platen to elevated position before releasing them, and a pawl and ratchet drive for the cam. 10. The combination with press box, of a platen reciprocable thereinto, guides for the platen, a pivoted driving arm for the platen, a power driven cam adapted to engage and depress said arm, a trip on the arm, a roller movable with the cam to gage the trip and lift the arm and platen to elevated position before releasing them, a pawl and ratchet drive for the cam, and a pawl on said arm adapted in raised position to engage the ratchet wheel and throughout the platens gravity drop to advance it independently of its driving 'pawls. 11. In combination, a rocking pawl arm, power means adapted continuously to oscillate said arm, pawls connected to the arm on opposite sides of its axis, a ratchet wheel driven by the pawls, a cam driven by the ratchet wheel, a pivoted platen operating arm adapted to be engaged and operated by the cam, a platen connected to and reciprocable by said arm, co-acting means on the cam and arm to raise and release the arm, and a press box with which the platen 'coacts.

12. In a cotton tramper, a reciprocable platen, a. press box for the platen, a reciting arm connected to the platen. a press guide for the platen comprising a plunger connected to the said arm and a cylinder guide for the plunger.

18. The combination with a trampingmechanism comprising a platen and means to reciprocate the platen, of a hydraulic pump operable with the platen and forming a guide therefor.

14. The combination with a double press comprisingv a tramper mechanism, a hydraulic ram, means to operate the tramper mechanism, and means to utilize the power as applied to the operation of the tramper mechanism to generate hydraulic pressure for the operation of said ram.

15. In combination, a cotton tramper, a hydraulic baling press, a pump adapted. to supply hydraulic pressure for the press, and a common power means for reciprocating the platen and operating the pump.

16. In a double box cotton press, a tra1nper mechanism adapted to co-operate with one box, a hydraulic ram adapted to co-operate with the other box, a cylindrical press column about which the boxes rotate, a plunger reciprocable in the column to form a hydraulic pump, a distribution piping system for the hydraulic pressure, and means to operate the platen mechanism and the pump.

17. The combination with a double box cotton press, of a cylindrical press column, a pump plunger reciprocable in the column, a tramper mechanism movable with and guidedby the pump plunger, means to operate the plunger and tramper mechanism, and a hydraulic rain operable by the power generated in said pump.

18. The combination with a rotating double press, of top and bottom supports therefor, a. hydraulic press column mounted between said supports, a gland in the upper end of the column, a pump plunger reciprocable-in the column and adapted to be packed by said gland. a hydraulic ram operable by the hydraulic pressure generated by said pump, an arm pivoted to the upper end of the plunger, a platen operably connected to one end of said arm, a rocking'pivotal support for the other end of said arm, and a drive for said arm compressing trip means to lift the arm, and cam means to depress the arm.

19. The combination with a press box and its platen, of a vertically rocking arm for operating the platen, means to operate the arm comprising trip means to lift the arm,

a power cam to depress the arm, a pawl and ratchet drive for the cam, and an adjustable stop on the arm adapted in its raised position to disengagethe pawls;

20. The combination with a press boX and its platen, of a vertically movable rocking said revolving roller releases the trip, substantially as described.

In testimony whereof I afix my signature. 10

JAMES M. PEERSON.

Witness NOMIE WELsH. 

